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• CONCLUSIONS AND RECOMMENDATIONS <br /> In summary, the soil conditions in the percolation test locations appear to be suitable for <br /> use with on-site septic systems. Satisfactory soil percolation rates of 4.5 min/in (Parcel <br /> 1), 4.9 min/in (Parcel 2), 16.7 min/in (Parcel 3), and 13.2 min/in (Parcel 4) were <br /> observed in the test locations. No new construction is planned for the Site. <br /> The depth of ground water based on recent aquifer levels is estimated to range between <br /> 73 to 86 feet below ground surface. The ground-water flow is to the northeast at a rate <br /> of approximately six to eight feet per mile. <br /> A water sample was collected from the domestic water well. Nitrate was detected at a <br /> concentration of 16.8 mg/L-N in the water sample, significantly above the US EPA's <br /> Maximum Contaminant Level (MCL) for of 10 mg/L. DBCP was not detected in the <br /> sample. It is recommended that the property owners discuss methods of reducing the <br /> nitrate levels in the on-site drinking water with the Environmental Health Department <br /> and/or a well contractor. For health reasons, we recommend that the well water not be <br /> consumed until nitrate levels can be reduced to below the MCL. Utilizing bottled water <br /> for drinking may be a good alternative to consider. <br /> We believe the Site suitable for the use of standard septic systems utilizing leach lines <br /> • and seepage pits. <br /> • <br /> LOGE 1702 Page 9 <br />